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Improvements and changes to defaults in heatmap #1184
A few changes are wrapped up in here:
Note how the colorbar stops at -.4 and does not include dark blue values. The recentering also respects custom colormap limits:
A possible TODO: in the reversed versions of the new sequential colormaps, I don't like how it tops out in a dark black and prefer a "short" version of the colormap that does not include the darkest ~40 values:
There's not currently a convention for describing such colormaps (akin to
This point is also relevant for using these wide-luminance range colormaps to map points/lines. Regrettably, matplotlib chose not to distinguish between a default image colormap and glyph colormap, even though the optimal properties of the two are clearly different.